They say it will be beneficial for distributors and consumers alike, as it will provide a cleaner burning fuel and less toxic air emissions.

"There's a lot of work going on now with retrieving fats and oils out of waste water treatment that can actually be turned into fuel and used here successfully," said Mike Youngerberg, Senior Director of Field Services.

The change will be effective until the end of summer and will go back to 5% biodiesel when the cold weather kicks in.